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3 years ago

What type of number is 80i

Mathematics

1 answer:

Zepler [3.9K]3 years ago

6 0

Answer:

an imaginary integer

Step-by-step explanation:

80 is an integer, so is also a rational, whole, and natural number. The i multiplier makes it imaginary, so also complex.

There are many ways to describe the number. Perhaps "imaginary integer" is a suitable description.

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jok3333 [9.3K]

Look at the picture.

The triangle ADC and the triangle CDB are similar.

Therefore corresponding sides are all in the same proportion:

$\dfrac{y}{4}=\dfrac{12}{y}\ \ \ \ |cross\ multiply\\\\y^2=48\to y=\sqrt{48}\\\\y=\sqrt{16\cdot3}\\\\y=\sqrt{16}\cdot\sqrt3\\\\y=4\sqrt3$

Answer: 4√3

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3 years ago

The Lopez family is traveling.The trip will take 8 1/4 hours by train or 6 2/3 hours by car.How many hours shorter is the trip b

aleksklad [387]

I think it is 1 and 7/12

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4 years ago

Eugene walked all the way to school at 3 mph then realized she forgot her math book (how could she?!), so she ran back at 7 mph.

Fynjy0 [20]

$\text{Answer: }1\frac{23}{40}\ miles\text{ far she live from school.}$

Explanation:

Since we have given that

Speed at which Eugene walked all the way to school = 3 mph

After realizing that she forgot her math book, she ran back

Speed at which Eugene walked back to her house = 7 mph

Let the distance between her house and her school be x

According to question,

$\frac{x}{3}+\frac{x}{7}=\frac{45}{60}\\\\\frac{7x+3x}{21}=\frac{3}{4}\\\\\frac{10x}{21}=\frac{3}{4}\\\\x=\frac{3\times 63}{4\times 10}=\frac{63}{40}=1\frac{23}{40}\ miles.$

Hence,

$1\frac{23}{40}\ miles\text{ far she live from school.}$

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3 years ago

What is the following quotient? StartFraction StartRoot 96 EndRoot Over StartRoot 8 EndRoot

Neporo4naja [7]

Answer:

A) $2\sqrt{3}$

Step-by-step explanation:

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3 years ago

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Am i blind or does this just not make any sense? Pls help!

allsm [11]

Answer:

0.4

Step-by-step explanation:

2/5 converted into hundredths is 40/100.

40/100 as a decimal is 0.40, or 0.4

-hope it helps

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2 years ago

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